Strange readings

Does the attached look ok? string 1 has a higher voltage but lower current, then drops the voltage and ups the current

Fridgeman I believe this is normal. It's trying to find the point with the maximum power (V x I), and that varies according to factors like shading, temperature, etc, as well as the characteristics of the panel itself.

https://www.electricalengineeringtoolbox.com/2021/12/the-behavior-of-illuminated-solar-cell.html